Regardful \Re*gard"ful\ (-f?l), a. Heedful; attentive; observant. -- {Re*gard"ful*ly}, adv. [1913 Webster] Let a man be very tender and regardful of every pious motion made by the Spirit of God to his heart. --South. [1913 Webster] Syn: Mindful; heedful; attentive; observant. [1913 Webster]